KTH3113
Manufacturer: CONNTEK
The KTH3113 is the most sensitive grade of the KTH31XX linear Hall family, at 8.90 mV/Gs with a ±150 Gs span at 3.3 V. It is aimed at designs where the field is weak or the gap is long — thin magnets, plastic-housed mechanisms, field-strength probes. Output noise rises with gain to 8.6 mVrms, so the trade-off is resolution against bandwidth, and the 30 kHz front end is fast enough to filter afterwards.
Overview
The KTH3113 is the highest-gain member of the CONNTEK KTH31xx linear Hall family, at 8.90 mV/Gs with a 3.3 V supply and 13.50 mV/Gs at 5 V, for a field span of about ±150 Gs. It is the part to use when the available field is weak: a thin magnet, a long air gap or a plastic-housed sensing position.
Output is a ratiometric analog voltage with a VDD/2 zero-field level. Supply range is 3.0 – 5.5 V with roughly 4.5 mA at 3.3 V, operation is rated -40 to +125 °C, and the part comes in SOT-23, TO-92S and DFN1616 packages.
Key features
- Highest gain in the family — ±150 Gs span for the weakest fields
- Ratiometric analog output, quiescent at VDD / 2
- 13.5 mV/Gs at 5 V for 5 V analog rails
- 3.0 – 5.5 V supply, −40 to +125 °C operating range
- SOT-23, TO-92S and DFN1616 package options
- 30 kHz bandwidth fast enough to average or filter downstream
Typical applications
- Weak-field measurement and laboratory field probes
- Position sensing through a long air gap
- Thin-magnet position and travel detection
- Magnetic field strength measurement
Specifications
Magnetic performance
| Sensitivity @ 3.3 V | 8.90 mV/Gs typ (8.28 – 9.52) |
|---|---|
| Sensitivity @ 5 V | 13.5 mV/Gs typ (12.56 – 14.45) |
| Magnetic range @ 3.3 V | ±150 Gs |
| Magnetic range @ 5 V | ±165 Gs |
| Output noise @ 3.3 V | 8.6 mVrms typ |
| Sensitivity drift | 0.1 %/°C typ |
| Linearity error | ±1.5 % |
Electrical
| Supply voltage | 3.0 – 5.5 V |
|---|---|
| Quiescent output | VDD / 2 (1.65 V at 3.3 V, 2.50 V at 5 V) |
| Output linear range | 0.25 V to VDD − 0.25 V |
| Supply current | 4.5 mA typ @ 3.3 V, 5.4 mA typ @ 5 V |
| Bandwidth | 30 kHz (−3 dB) |
| Power-on time | 20 µs typ |
| Load capacitance | ≤ 10 nF |
Package and temperature
| Packages | SOT-23, TO-92S, DFN1616 |
|---|---|
| Pins | VDD / OUT / GND |
| Operating temperature | -40 – +125 °C |
Family sensitivity options
| KTH3101 | 1.00 mV/Gs @ 3.3 V · ±1400 Gs |
|---|---|
| KTH3102 | 1.65 mV/Gs @ 3.3 V · ±840 Gs |
| KTH3103 | 2.25 mV/Gs @ 3.3 V · ±620 Gs |
| KTH3105 | 3.30 mV/Gs @ 3.3 V · ±420 Gs |
| KTH3110 | 6.60 mV/Gs @ 3.3 V · ±210 Gs |
| KTH3113 | 8.90 mV/Gs @ 3.3 V · ±150 Gs |
Note on parameters. The figures above are taken from the manufacturer datasheet for KTH3113. Electrical limits vary by ordering option and revision — confirm the current datasheet before finalising your design.
Package and ordering
| Ordering code | Package | Operating temp. / grade |
|---|---|---|
| KTH3113 | SOT-23 / TO-92S / DFN1616 | -40 to +125 °C |
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Sourcing KTH3113
We supply KTH3113 with original manufacturer documentation and a quotation that states lead time, packaging and price breaks. Send your annual quantity and target date and you will get a reply with the datasheet attached.